JPH092270A - Insulated track circuit - Google Patents
Insulated track circuitInfo
- Publication number
- JPH092270A JPH092270A JP18064495A JP18064495A JPH092270A JP H092270 A JPH092270 A JP H092270A JP 18064495 A JP18064495 A JP 18064495A JP 18064495 A JP18064495 A JP 18064495A JP H092270 A JPH092270 A JP H092270A
- Authority
- JP
- Japan
- Prior art keywords
- track circuit
- frequency
- track
- signal
- impedance bond
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は有絶縁軌道回路、特に
軌条絶縁装置の破損による軌条短絡の検知に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated track circuit, and more particularly to detection of a rail short circuit due to damage to a rail insulation device.
【０００２】[0002]
【従来の技術】一般に列車の位置検知の一手段として有
絶縁軌道回路が採用されている。有絶縁軌道回路は、図
２に示すようにレール１，２を軌条絶縁装置Ａ1〜Ａ3，
Ｂ1〜Ｂ3で所定の区間長に分割し、軌条絶縁装置Ａ1〜
Ａ3，Ｂ1〜Ｂ3の左右にインピーダンスボンドＺＢ1，Ｚ
Ｂ2，ＺＢ3を接続して各軌道回路１Ｔ，２Ｔ，３Ｔを構
成している。各軌道回路１Ｔ，２Ｔ，３Ｔのインピーダ
ンスボンドＺＢ12，ＺＢ22，ＺＢ32には送信器ＴＸ1，
ＴＸ2，ＴＸ3が接続され、インピーダンスボンドＺ
Ｂ21，ＺＢ31には受信器ＲＸ1，ＲＸ2が接続される。送
信器ＴＸ1，ＴＸ2，ＴＸ3は常時一定周波数の列車検知
信号をレール１，２に送出し、受信器ＲＸ1，ＲＸ2は送
信器ＴＸ1，ＴＸ2が送出した列車検知信号の受信の有無
を検出する。例えば軌道回路１Ｔに列車が在線していな
い場合には、送信器ＴＸ1がインピーダンスボンドＺＢ
12を介して送出した一定周波数の列車検知信号はレール
１，２及びインピーダンスボンドＺＢ21を経由して受信
器ＲＸ1に受電され、受信器ＲＸ1を動作させる。これに
対して、軌道回路１Ｔに列車が在線している場合には、
列車の車軸によりレール１，２が短絡するため、送信器
ＴＸ1が送出した列車検知信号は車軸を介して送信器Ｔ
Ｘ1に帰還し受信器ＲＸ1に流れず、受信器ＲＸ1は動作
を停止する。このように、各軌道回路１Ｔ，２Ｔでは送
信器ＲＸ1，ＲＸ 2がレール１，２に流した一定周波数の
列車検知信号をインピーダンスボンドＺＢ21，ＺＢ22を
介して受信器ＴＸ1，ＴＸ2が検出することにより、列車
の有無を検出している。2. Description of the Related Art Generally, it is used as a means for detecting train position.
An insulated track circuit is used. Figure with insulated track circuit
As shown in 2, the rails 1 and 2 are connected to the rail insulation device A.1~ AThree,
B1~ BThreeRail insulation device A1~
AThree, B1~ BThreeImpedance bond ZB on both sides of1, Z
BTwo, ZBThreeBy connecting each track circuit 1T, 2T, 3T
Has formed. Impeller of each track circuit 1T, 2T, 3T
Bond ZB12, ZBtwenty two, ZB32Transmitter TX1,
TXTwo, TXThreeIs connected and impedance bond Z
Btwenty one, ZB31RX on the1, RXTwoIs connected. Sending
Transmitter TX1, TXTwo, TXThreeAlways detects trains with constant frequency
Send signals to rails 1 and 2 and receive RX1, RXTwoIs sent
Transmitter TX1, TXTwoWhether or not the train detection signal sent by
Is detected. For example, there is no train on the track circuit 1T
If not, transmitter TX1Is impedance bond ZB
12Train detection signal of constant frequency sent via the rail
1, 2 and impedance bond ZBtwenty oneReceived via
Vessel RX1Received by the receiver RX1To work. to this
On the other hand, if there is a train on the track circuit 1T,
Since the rails 1 and 2 are short-circuited by the train axle, the transmitter
TX1Train detection signal sent by the transmitter T via the axle
X1Return to RX1Does not flow into the receiver RX1Works
To stop. In this way, each track circuit 1T, 2T
RX RX1, RX TwoOf the constant frequency of flowing on rails 1 and 2
Impedance bond ZB for train detection signaltwenty one, ZBtwenty twoTo
Through the receiver TX1, TXTwoBy detecting the train
The presence or absence of is detected.
【０００３】一般に有絶縁軌道回路は軌条絶縁装置Ａ1
〜Ａ3，Ｂ1〜Ｂ3の破損による誤動作を防止するため
に、通常隣接する軌道回路１Ｔ，２Ｔ，３Ｔの各送信器
ＴＸ1，ＴＸ2，ＴＸ3毎に位相を交互に「180」度ずらし
た列車検知信号を出力している。例えば、軌道回路２Ｔ
と軌道回路３Ｔとの間の軌条絶縁装置Ａ3が破損し短絡
すると、軌道回路３Ｔの送信器ＴＸ3の列車検知信号は
軌道回路２ＴのインピーダンスボンドＺＢ3の中点を通
り、矢印Ｄに示すように流れインピーダンスボンドＺＢ
31に電圧を印加する。この印加電圧は短絡がない場合の
受電電圧とは位相が「180」度異なるため受信器ＲＸ2は
動作を停止することができる。Generally, an insulated track circuit is a rail insulation device A 1
To prevent malfunction due ~A 3, B 1 ~B 3 damage, usually adjacent track circuit 1T, 2T, the phase alternately for each transmitter TX 1, TX 2, TX 3 of 3T "180" It outputs train detection signals that are staggered. For example, track circuit 2T
If the rail insulation device A 3 between the track circuit 3T and the track circuit 3T is damaged and short-circuited, the train detection signal of the transmitter TX 3 of the track circuit 3T passes through the midpoint of the impedance bond ZB 3 of the track circuit 2T and is shown by an arrow D. Flow like impedance bond ZB
Apply voltage to 31 . Since the applied voltage has a phase difference of "180" degrees from the received voltage when there is no short circuit, the receiver RX 2 can stop the operation.
【０００４】ここで、受信器ＲＸ2は動作を停止するこ
とができるが、軌道回路３Ｔの送信器ＴＸ3からの列車
検知信号が軌道回路２Ｔに流れ込むため、列車を検知す
ることができない。Although the receiver RX 2 can stop its operation, the train cannot be detected because the train detection signal from the transmitter TX 3 of the track circuit 3T flows into the track circuit 2T.
【０００５】さらに、軌道回路２Ｔ上に列車が存在しな
い旨の情報を得たうえに、軌道区間に列車が存在しない
ことを確認した後でなければ軌条絶縁装置Ａ3の破壊を
検出することができない。Further, after the information that there is no train on the track circuit 2T is obtained and it is confirmed that there is no train on the track section, it is possible to detect the breakdown of the rail insulation device A 3. Can not.
【０００６】また、隣接する軌道回路１Ｔ，２Ｔ，３Ｔ
の送信器ＴＸ1，ＴＸ2，ＴＸ3の位相を「180」度ずらす
ため、専用の信号配電線を配設しなければならない等の
問題が有る。Further, adjacent track circuits 1T, 2T, 3T
In order to shift the phases of the transmitters TX 1 , TX 2 and TX 3 by 180 degrees, there is a problem that a dedicated signal distribution line must be provided.
【０００７】これに対して、実公昭６２-5419号公報で
開示された軌条絶縁破壊検知器では、図３に示すように
発振器ＯＳＣの出力端の一方を限流抵抗Ｒ、コンデンサ
Ｃ及びリアクトルＬを介して一方のレールに接続し、発
振器ＯＳＣの出力端子の他方を軌条絶縁装置Ａ，Ｂを介
したレールに接続し、限流抵抗ＲとコンデンサＣの中点
及び発振器ＯＳＣの出力端の他方に整流器ＲＥＣを介し
て直流リレーＳＲを接続して、かつ、発振器ＯＳＣの発
振周波数が前記コンデンサＣ及びリアクトルＬに直列共
振するように設定している。発振器ＯＳＣから送信され
た電流の隣接する軌道回路１Ｔ，２Ｔが短絡していない
ときはインピーダンスボンドＺＢ11，ＺＢ12の半分を経
由し帰還し直流リレーＳＲを作動し、隣接する軌道回路
１Ｔ，２Ｔのレールが短絡しているときは短絡部分を経
由し帰還し、コンデンサＣとリアクトルＬの共振インピ
ーダンスと発振器ＯＳＣの周波数は共振しているため、
直流リレーＳＲを復旧する。このように、上記軌条絶縁
破壊検知器３では隣接する軌道回路１Ｔ，２Ｔの列車検
知信号の位相を考慮する必要が無く、専用の信号配電線
が必要無いので電源を自由に選択できる。On the other hand, in the rail dielectric breakdown detector disclosed in Japanese Utility Model Publication No. 62-5419, one of the output terminals of the oscillator OSC has a current limiting resistor R, a capacitor C and a reactor L as shown in FIG. Connected to one of the rails, the other of the output terminals of the oscillator OSC is connected to the rail via the rail insulation devices A and B, the middle point of the current limiting resistor R and the capacitor C, and the other of the output terminals of the oscillator OSC. Is connected to a DC relay SR via a rectifier REC, and the oscillation frequency of the oscillator OSC is set to resonate in series with the capacitor C and the reactor L. When the adjacent track circuits 1T and 2T of the current transmitted from the oscillator OSC are not short-circuited, the current is fed back through half of the impedance bonds ZB 11 and ZB 12 to operate the DC relay SR, and the adjacent track circuits 1T and 2T. When the rail of is short-circuited, it returns via the short-circuited part, and the resonance impedance of the capacitor C and the reactor L and the frequency of the oscillator OSC resonate.
Restore the DC relay SR. As described above, the rail insulation breakdown detector 3 does not need to consider the phase of the train detection signals of the adjacent track circuits 1T and 2T, and does not need a dedicated signal distribution line, so that the power source can be freely selected.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、前記軌
条絶縁破壊検知器３では発振器ＯＳＣから発振した電流
によりリレーを作動しているため、発振器ＯＳＣを別途
設けなければならず、構成が複雑になり設置費用が高く
なる。However, in the rail insulation breakdown detector 3, since the relay is operated by the current oscillated from the oscillator OSC, the oscillator OSC must be separately provided, which complicates the configuration. The cost is high.
【０００９】また、コンデンサＣとリアクトルＬから成
る直列共振子の耐圧を高める必要が有り、コンデンサＣ
とリアクトルＬがかなり大きいものとなる。Further, it is necessary to increase the breakdown voltage of the series resonator composed of the capacitor C and the reactor L.
And the reactor L becomes quite large.
【００１０】また、列車が通過するたびに列車の車輪が
軌道絶縁装置を短絡し直流リレーＳＲが作動するので直
流リレーＳＲの寿命が短い。Further, each time a train passes, the wheels of the train short-circuit the track insulation device and the DC relay SR operates, so that the life of the DC relay SR is short.
【００１１】この発明はかかる短所を解消するためにな
されたものであり、簡単な構成で軌道絶縁装置の短絡の
有無を検出する有絶縁軌道回路を得ることを目的とする
ものである。The present invention has been made to solve the above disadvantages, and an object thereof is to obtain an insulated track circuit for detecting the presence or absence of a short circuit in the track insulation device with a simple structure.
【００１２】[0012]
【課題を解決するための手段】この発明に係る有絶縁軌
道回路は、２本のレ−ル１，２の軌条絶縁装置Ａ，Ｂを
境にして設けられ、インピ−ダンスボンドＺＢ1，Ｚ
Ｂ2，ＺＢ3を介して接続された軌道回路１Ｔ，２Ｔ，３
Ｔを有し、軌道回路１Ｔの送信器ＴＸ1は送信側のイン
ピ−ダンスボンドＺＢ12に接続され、周波数ｆ1の列車
検知信号を軌道回路１Ｔに出力し、受信器ＲＸ1は周波
数ｆ1の信号を通過させるバンドパスフィルタＢＰＦ12
を介して受信側のインピ−ダンスボンドＺＢ21に接続さ
れ、周波数ｆ1の信号の受信の有無により列車の検知を
行ない、軌条絶縁破壊検出器ＩＤＴ1は軌道回路２Ｔに
流れる周波数ｆ2の信号を通過させるバンドパスフィル
タＢＰＦ11を介して受信側のインピ−ダンスボンドＺＢ
21に接続され、軌道回路１Ｔと軌道回路２Ｔ間の軌条絶
縁装置Ａ2，Ｂ2の絶縁破壊の有無を検知し、受信側のイ
ンピ−ダンスボンドＺＢ21に周波数ｆ2の信号が重畳さ
れたときに軌道回路１Ｔと軌道回路２Ｔ間の軌条絶縁装
置Ａ2，Ｂ2が絶縁破壊したと判断し、軌道回路２Ｔの送
信器ＴＸ2は送信側のインピ−ダンスボンドＺＢ22に接
続され、軌道回路１Ｔに送信される列車検知信号の周波
数ｆ1と異なる周波数ｆ2の列車検知信号を軌道回路２Ｔ
に出力し、受信器ＲＸ2は周波数ｆ2の信号を通過させる
バンドパスフィルタＢＰＦ22を介して受信側のインピ−
ダンスボンドＺＢ31に接続され、周波数ｆ2の信号の受
信の有無により列車の検知を行ない、軌条絶縁破壊検出
器ＩＤＴ2は軌道回路３Ｔに流れる周波数ｆ1の信号を通
過させるバンドパスフィルタＢＰＦ21を介して受信側の
インピ−ダンスボンドＺＢ31に接続され、受信側のイン
ピ−ダンスボンドＺＢ31に周波数ｆ1の信号が重畳され
たときに軌道回路２Ｔと隣接する軌道回路３Ｔ間の軌条
絶縁装置Ａ3，Ｂ3が絶縁破壊したと判断し、軌道回路２
Ｔと隣接する軌道回路３Ｔと間の軌条絶縁装置Ａ3，Ｂ3
の絶縁破壊の有無を検知する。The insulated track circuit according to the present invention is provided with the rail insulating devices A and B of the two rails 1 and 2 as boundaries, and the impedance bonds ZB 1 and ZB are provided.
B 2, the track is connected via the ZB 3 circuit 1T, 2T, 3
The transmitter TX 1 of the track circuit 1T is connected to the impedance bond ZB 12 on the transmission side and outputs the train detection signal of the frequency f 1 to the track circuit 1T, and the receiver RX 1 has the frequency f 1 of T. Band pass filter BPF 12 that passes the signal of
Is connected to the impedance bond ZB 21 on the receiving side via the railcar, and detects the train depending on whether or not the signal of the frequency f 1 is received. The rail insulation breakdown detector IDT 1 is a signal of the frequency f 2 flowing to the track circuit 2T. Through the band pass filter BPF 11 for passing
It is connected to the track circuit 1T and detects the presence or absence of dielectric breakdown of the track insulation devices A 2 and B 2 between the track circuit 1T and the track circuit 2T, and the signal of frequency f 2 is superimposed on the impedance bond ZB 21 on the receiving side. At some point, it was judged that the rail insulation devices A 2 and B 2 between the track circuit 1T and the track circuit 2T had a dielectric breakdown, and the transmitter TX 2 of the track circuit 2T was connected to the impedance bond ZB 22 on the transmission side. A train detection signal having a frequency f 2 different from the frequency f 1 of the train detection signal transmitted to the circuit 1T is supplied to the track circuit 2T.
To the receiver RX 2 via a bandpass filter BPF 22 that allows the signal of frequency f 2 to pass therethrough.
The band-pass filter BPF 21 is connected to the dance bond ZB 31 and detects the train depending on whether or not the signal of the frequency f 2 is received, and the rail insulation breakdown detector IDT 2 passes the signal of the frequency f 1 flowing through the track circuit 3T. through the receiving side Inpi - connected to dance bond ZB 31, the receiving-side Inpi - rail insulation between track circuit 3T adjacent to the track circuit 2T when a signal of frequency f 1 is superimposed on the dance bond ZB 31 It was judged that the devices A 3 and B 3 had dielectric breakdown, and the track circuit 2
Rail insulation device A 3 , B 3 between T and adjacent track circuit 3T
Detects the presence or absence of dielectric breakdown.
【００１３】[0013]
【作用】この発明においては、送信器ＴＸ1は送信側の
インピ−ダンスボンドＺＢ12を介して周波数ｆ1の列車
検知信号を軌道回路１Ｔに出力する。バンドパスフィル
タＢＰＦ12は軌道回路１Ｔの受信側のインピーダンスボ
ンドＺＢ21を介して軌道回路１Ｔから送られる信号のう
ち周波数ｆ1の信号を透過し受信器ＲＸ1に送る。受信器
ＲＸ1はバンドパスフィルタＢＰＦ12に接続され、周波
数ｆ1の信号の受信の有無により列車の検知を行なう。In the present invention, the transmitter TX 1 outputs the train detection signal of the frequency f 1 to the track circuit 1T via the impedance bond ZB 12 on the transmission side. The bandpass filter BPF 12 transmits the signal of frequency f 1 among the signals sent from the track circuit 1T via the impedance bond ZB 21 on the receiving side of the track circuit 1T and sends it to the receiver RX 1 . The receiver RX 1 is connected to the bandpass filter BPF 12 and detects a train depending on whether or not the signal of the frequency f 1 is received.
【００１４】さらに、送信器ＴＸ2は軌道回路１Ｔの列
車検知信号の周波数ｆ1と異なる周波数ｆ2の列車検知信
号を軌道回路２Ｔに出力する。軌条絶縁破壊検出器ＩＤ
Ｔ1は軌道回路２Ｔに流れる周波数ｆ2の信号を通過させ
るバンドパスフィルタＢＰＦ11を介して受信側のインピ
−ダンスボンドＺＢ21に接続され、受信側のインピ−ダ
ンスボンドＺＢ21に周波数ｆ2の信号が重畳されたとき
に軌道回路１Ｔと軌道回路２Ｔ間の軌条絶縁装置Ａ2，
Ｂ2が絶縁破壊したと判断し、軌道回路１Ｔと軌道回路
２Ｔ間の軌条絶縁装置Ａ2，Ｂ2の絶縁破壊の有無を検知
する。Further, the transmitter TX 2 outputs a train detection signal of a frequency f 2 different from the frequency f 1 of the train detection signal of the track circuit 1T to the track circuit 2T. Rail insulation breakdown detector ID
T 1 is the receiving side through a band pass filter BPF 11 for passing a signal of a frequency f 2 that flows through the track circuit 2T Inpi - connected to dance bond ZB 21, the receiving side Inpi - dance bond ZB 21 frequency f 2 Rail track insulation device A 2 between the track circuit 1T and the track circuit 2T when the signal of
It determines that the B 2 has the dielectric breakdown, to detect the presence or absence of dielectric breakdown of the railway isolator A 2, B 2 between track circuit 1T and track circuits 2T.
【００１５】また、軌条絶縁破壊検出器ＩＤＴ2は軌道
回路３Ｔに流れる周波数ｆ1の信号を通過させるバンド
パスフィルタＢＰＦ21を介して受信側のインピ−ダンス
ボンドＺＢ31に接続され、受信側のインピ−ダンスボン
ドＺＢ31に周波数ｆ1の信号が重畳されたときに軌道回
路２Ｔと隣接する軌道回路３Ｔ間の軌条絶縁装置Ａ3，
Ｂ3が絶縁破壊したと判断し、軌道回路２Ｔと隣接する
軌道回路３Ｔと間の軌条絶縁装置Ａ3，Ｂ3の絶縁破壊の
有無を検知する。Further, the rail insulation breakdown detector IDT 2 is connected to an impedance bond ZB 31 on the receiving side via a bandpass filter BPF 21 which allows a signal having a frequency f 1 flowing in the track circuit 3T to pass through, and is connected to the impedance bond ZB 31 on the receiving side. When a signal of frequency f 1 is superimposed on the impedance bond ZB 31 , the track insulation device A 3 , between the track circuit 2T and the adjacent track circuit 3T,
It determines that B 3 have dielectric breakdown, to detect the presence of the railway isolator A 3, B 3 of dielectric breakdown between the track circuit 3T adjacent to the track circuit 2T.
【００１６】[0016]
【実施例】図１はこの発明の一実施例を示す有絶縁軌道
回路の構成図である。図に示すように、有絶縁軌道回路
は２本のレ−ル１，２を所定の区間長に分割する軌条絶
縁装置Ａ1〜Ａ3，Ｂ1〜Ｂ3を境にして設けられ、インピ
−ダンスボンドＺＢ1，ＺＢ2，ＺＢ3を介して接続され
た軌道回路１Ｔ，２Ｔ，３Ｔを有する。軌道回路１Ｔは
２本のレ−ル１，２と送信器ＴＸ1と受信器ＲＸ1とバン
ドパスフィルタＢＰＦ11，ＢＰＦ12と送信側のインピ−
ダンスボンドＺＢ12と受信側のインピ−ダンスボンドＺ
Ｂ21と軌条絶縁破壊検出器ＩＤＴ1とを有する。軌道回
路１Ｔの送信器ＴＸ1は送信側のインピ−ダンスボンド
ＺＢ12に接続され、常時周波数ｆ1の列車検知信号を出
力する。バンドパスフィルタＢＰＦ12はインピーダンス
ボンドＺＢ21に接続され、インピーダンスボンドＺＢ21
から送られる信号のうち送信器ＴＸ1の周波数ｆ1の信号
を通過させ受信器ＲＸ1に送る。受信器ＲＸ1はバンドパ
スフィルタＢＰＦ12を介して受信側のインピ−ダンスボ
ンドＺＢ21に接続され、周波数ｆ1の信号を受信したと
きは軌道回路１Ｔに列車が存在することを検知し、周波
数ｆ1の信号を受信しないときは軌道回路１Ｔに列車が
存在しないことを検知する。1 is a block diagram of an insulated track circuit according to an embodiment of the present invention. As shown in the figure, the insulated track circuit is provided with the rail insulation devices A 1 to A 3 and B 1 to B 3 dividing the two rails 1 and 2 into a predetermined section length as boundaries, - having dancing bond ZB 1, ZB 2, track connected through the ZB 3 circuit 1T, 2T, and 3T. The track circuit 1T includes two rails 1 and 2, a transmitter TX 1 , a receiver RX 1 , band pass filters BPF 11 and BPF 12, and a transmission side impedance.
Dance Bond ZB 12 and Impedance Bond Z on the receiving side
B 21 and rail dielectric breakdown detector IDT 1 . The transmitter TX 1 of the track circuit 1T is connected to the impedance bond ZB 12 on the transmitting side and constantly outputs a train detection signal of the frequency f 1 . Band-pass filter BPF 12 is connected to the impedance bond ZB 21, impedance bonds ZB 21
The signal of the frequency f 1 of the transmitter TX 1 among the signals sent from is passed to the receiver RX 1 . The receiver RX 1 is connected to the impedance bond ZB 21 on the receiving side via the bandpass filter BPF 12, and when the signal of the frequency f 1 is received, the presence of a train in the track circuit 1T is detected, When the signal of f 1 is not received, it is detected that no train exists in the track circuit 1T.
【００１７】バンドパスフィルタＢＰＦ11は受信側のイ
ンピ−ダンスボンドＺＢ21にバンドパスフィルタＢＰＦ
12と並列に接続され、受信側のインピ−ダンスボンドＺ
Ｂ21に軌道回路２Ｔから流れる周波数ｆ2の信号を通過
させ軌条絶縁破壊検出器ＩＤＴ1に送る。軌条絶縁破壊
検出器ＩＤＴ1はバンドパスフィルタＢＰＦ11を介して
受信側のインピ−ダンスボンドＺＢ21に接続され、バン
ドパスフィルタＢＰＦ11からの信号を受信したときは軌
道回路１Ｔと軌道回路２Ｔ間の軌条絶縁装置Ａ2又は軌
条絶縁装置Ｂ2が絶縁破壊したと判断し、バンドパスフ
ィルタＢＰＦ11からの信号を受信しないときは軌道回路
１Ｔと軌道回路２Ｔ間の軌条絶縁装置Ａ2，Ｂ2が正常と
判断し、軌道回路１Ｔと軌道回路２Ｔ間の軌条絶縁装置
Ａ2，Ｂ2の絶縁破壊の有無を検知する。The bandpass filter BPF 11 is connected to the impedance bond ZB 21 on the receiving side by the bandpass filter BPF.
Impedance bond Z on the receiving side connected in parallel with 12
A signal of frequency f 2 flowing from the track circuit 2T is passed through B 21 and sent to the rail insulation breakdown detector IDT 1 . Rail breakdown detector IDT 1 is via the band-pass filter BPF 11 recipient Inpi - connected to dance bond ZB 21, between the track circuit 1T and track circuit 2T when it receives a signal from the band pass filter BPF 11 When it is judged that the rail insulation device A 2 or the rail insulation device B 2 has a dielectric breakdown and the signal from the bandpass filter BPF 11 is not received, the rail insulation device A 2 , B 2 between the track circuit 1T and the track circuit 2T. Is determined to be normal, and the presence or absence of dielectric breakdown of the rail insulation devices A 2 and B 2 between the track circuit 1T and the track circuit 2T is detected.
【００１８】軌道回路２Ｔは２本のレ−ル１，２とバン
ドパスフィルタＢＰＦ21，ＢＰＦ22と送信器ＴＸ2と受
信器ＲＸ2と送信側のインピ−ダンスボンドＺＢ22と受
信側のインピ−ダンスボンドＺＢ31と軌条絶縁破壊検出
器ＩＤＴ2とを有する。軌道回路２Ｔの送信器ＴＸ2は送
信側のインピ−ダンスボンドＺＢ22に接続され、軌道回
路１Ｔに送信される列車検知信号の周波数ｆ1と異なる
周波数ｆ2の列車検知信号を常時軌道回路２Ｔに出力す
る。バンドパスフィルタＢＰＦ22は受信側のインピ−ダ
ンスボンドＺＢ31に接続され、インピ−ダンスボンドＺ
Ｂ31から送られる信号のうち周波数ｆ2の信号を通過さ
せ受信器ＲＸ2に送る。受信器ＲＸ2はバンドパスフィル
タＢＰＦ22を介して受信側のインピ−ダンスボンドＺＢ
31に接続され、周波数ｆ2の信号を受信したときは軌道
回路２Ｔに列車が存在することを検知し、周波数ｆ2の
信号を受信しないときは軌道回路２Ｔに列車が存在しな
いことを検知する。The track circuit 2T includes two rails 1 and 2, bandpass filters BPF 21 and BPF 22 , a transmitter TX 2 , a receiver RX 2 , an impedance bond ZB 22 on the transmission side, and an impedance bond on the reception side. It has a dance bond ZB 31 and a rail insulation breakdown detector IDT 2 . The transmitter TX 2 of the track circuit 2T is connected to the impedance bond ZB 22 on the transmission side, and the train detection signal of the frequency f 2 different from the frequency f 1 of the train detection signal transmitted to the track circuit 1T is constantly supplied to the track circuit 2T. Output to. The bandpass filter BPF 22 is connected to the impedance bond ZB 31 on the reception side, and the impedance bond ZB
Of the signals sent from B 31 , the signal of frequency f 2 is passed and sent to the receiver RX 2 . The receiver RX 2 receives the impedance bond ZB on the receiving side via the bandpass filter BPF 22.
Is connected to 31, when receiving a signal of a frequency f 2 detects the presence of a train in the track circuit 2T, when it does not receive a signal of a frequency f 2 detects the absence of a train on track circuits 2T .
【００１９】バンドパスフィルタＢＰＦ21は受信側のイ
ンピ−ダンスボンドＺＢ31に接続され、インピ−ダンス
ボンドＺＢ31に流れる信号のうち周波数ｆ1の信号を通
過させ軌条絶縁破壊検出器ＩＤＴ2に送る。軌条絶縁破
壊検出器ＩＤＴ2はバンドパスフィルタＢＰＦ21を介し
て受信側のインピ−ダンスボンドＺＢ31に接続され、受
信側のインピ−ダンスボンドＺＢ31に周波数ｆ1の信号
が重畳されたときに軌道回路２Ｔと隣接する軌道回路３
Ｔ間の軌条絶縁装置Ａ3又は軌条絶縁装置Ｂ3が絶縁破壊
したと判断し、軌道回路２Ｔと隣接する軌道回路３Ｔと
間の軌条絶縁装置Ａ3，Ｂ3の絶縁破壊の有無を検知す
る。The bandpass filter BPF 21 is connected to the impedance bond ZB 31 on the receiving side, and passes the signal of frequency f 1 among the signals flowing in the impedance bond ZB 31 and sends it to the rail insulation breakdown detector IDT 2 . . The rail insulation breakdown detector IDT 2 is connected to the reception side impedance bond ZB 31 via the bandpass filter BPF 21, and when the signal of frequency f 1 is superimposed on the reception side impedance bond ZB 31. Track circuit 2T and adjacent track circuit 3
It is judged that the rail insulation device A 3 or the rail insulation device B 3 between T has broken down, and the presence or absence of the breakdown of the rail insulation device A 3 , B 3 between the track circuit 2T and the adjacent track circuit 3T is detected. .
【００２０】軌道回路３Ｔは２本のレ−ル１，２と送信
器ＴＸ2とを有する。軌道回路３Ｔの送信器ＴＸ3は送信
側のインピ−ダンスボンドＺＢ32に接続され、軌道回路
２Ｔに送信される列車検知信号の周波数ｆ2と異なる周
波数ｆ1の列車検知信号を常時軌道回路３Ｔに出力す
る。The track circuit 3T has two rails 1 and 2 and a transmitter TX 2 . The transmitter TX 3 of the track circuit 3T is connected to the impedance bond ZB 32 on the transmission side, and the train detection signal of the frequency f 1 different from the frequency f 2 of the train detection signal transmitted to the track circuit 2T is constantly supplied to the track circuit 3T. Output to.
【００２１】上記構成において、例えば軌条絶縁装置Ａ
2，Ｂ2が正常で、軌道回路１Ｔと軌道回路２Ｔとが短絡
していない場合、軌道回路１Ｔの送信器ＴＸ1が送信し
た周波数ｆ1の信号はインピーダンスボンドＺＢ12の一
次側コイルを通り二次側コイルに信号を流し、列車の有
無を検査する。縁軌道回路１Ｔに列車が無い場合は、二
次側コイルの列車検知信号は受信側のインピーダンスボ
ンドＺＢ21の一次側コイルを通り、インピーダンスボン
ドＺＢ21の二次側コイルに周波数ｆ1の電流Ｉ(f1)を発
生させる。インピーダンスボンドＺＢ21の二次側コイル
に発生した電流Ｉ(f1)はバンドパスフィルタＢＰＦ12を
透過し受信器ＲＸ1に流れ、受信器ＲＸ1は縁軌道回路１
Ｔ上に列車がいないことを検知する。ここで、バンドパ
スフィルタＢＰＦ11は隣接する縁軌道回路２Ｔの送信器
ＴＸ2が送信する周波数ｆ2を有する電流のみを透過し軌
条絶縁破壊検出器ＩＤＴ1に送るので、周波数ｆ1の電流
Ｉ(f1)は軌条絶縁破壊検出器ＩＤＴ1に送られず、軌条
絶縁破壊検出器ＩＤＴ1では電流を検知しないので軌条
絶縁正常と判断する。In the above structure, for example, the rail insulation device A
2 and B 2 are normal and the track circuit 1T and the track circuit 2T are not short-circuited, the signal of frequency f 1 transmitted by the transmitter TX 1 of the track circuit 1T passes through the primary coil of the impedance bond ZB 12. A signal is sent to the secondary coil to check for the presence of trains. Edge when the train is not the track circuit 1T, train detection signal of the secondary coil passes through the primary coil of the receiving side impedance bond ZB 21, impedance bonds ZB 21 of the secondary coil to the frequency f 1 of the current I generate (f 1 ). Impedance bond current generated in the secondary coil of the ZB 21 I (f 1) is transmitted through the band-pass filter BPF 12 flows to the receiver RX 1, receiver RX 1 an edge track circuit 1
Detect that there is no train on T. Here, since the bandpass filter BPF 11 transmits only the current having the frequency f 2 transmitted by the transmitter TX 2 of the adjacent edge track circuit 2T and sends it to the rail breakdown detector IDT 1 , the current I of the frequency f 1 is transmitted. (f 1) is not sent to the rails breakdown detector IDT 1, it is determined that the rail insulator normal does not detect the current in rail breakdown detector IDT 1.
【００２２】これに対して、例えば軌条絶縁装置Ｂ2が
故障し軌道回路１Ｔと隣接する軌道回路２Ｔが短絡した
場合、軌道回路２Ｔの送信器ＴＸ2が送信した信号は軌
条絶縁装置Ｂ2の短絡部分からインピーダンスボンドＺ
Ｂ21の一次側コイルの半分を通りインピーダンスボンド
ＺＢ21の二次側コイルに流れ、インピーダンスボンドＺ
Ｂ21の二次側コイルには周波数ｆ2の電流Ｉ(f2)が流入
される。インピーダンスボンドＺＢ21の二次側コイルに
流れる電流Ｉ(f2)はバンドパスフィルタＢＰＦ11を透過
し、軌条絶縁破壊検知器ＩＤＴ1に流れる。軌条絶縁破
壊検知器ＩＤＴ1はバンドパスフィルタＢＰＦ11から送
られた電流Ｉ(f2)を検知し、軌条絶縁装置Ａ2又は軌条
絶縁装置Ｂ2の破壊を検知する。ここで、バンドパスフ
ィルタＢＰＦ12は送信器ＴＸ1が送信する周波数ｆ1の電
流のみを透過し受信器ＲＸ1に送るので、周波数ｆ2の電
流Ｉ(f2)は受信器ＲＸ1に送られず、受信器ＲＸ1の列車
誤検出を防止している。On the other hand, for example, when the track insulating device B 2 fails and the track circuit 1T and the adjacent track circuit 2T are short-circuited, the signal transmitted by the transmitter TX 2 of the track circuit 2T is transmitted by the track insulating device B 2 . Impedance bond Z from short-circuited part
Half of the primary side coil of the B 21 flows to the secondary side coil of the street impedance bond ZB 21, the impedance bond Z
A current I (f 2 ) having a frequency f 2 flows into the secondary coil of B 21 . The current I (f 2 ) flowing through the secondary coil of the impedance bond ZB 21 passes through the bandpass filter BPF 11 and flows through the rail insulation breakdown detector IDT 1 . The rail insulation breakdown detector IDT 1 detects the current I (f 2 ) sent from the bandpass filter BPF 11 to detect the breakdown of the rail insulation device A 2 or the rail insulation device B 2 . Since the band-pass filter BPF 12 passes only the current frequency f 1 of the transmitter TX 1 transmits send to the receiver RX 1, current I (f 2) of the frequency f 2 is sent to the receiver RX 1 This prevents the receiver RX 1 from erroneously detecting the train.
【００２３】このように、この発明に係る有絶縁軌道回
路はインピ−ダンスボンドＺＢ1，ＺＢ2，ＺＢ3を介し
て接続された隣接する軌道回路１Ｔ，２Ｔ，３Ｔの異な
った周波数の列車検知信号を利用し軌条絶縁装置Ａ1〜
Ａ3，Ｂ1〜Ｂ3の破壊を検知するので、発振器ＯＳＣ等
を別途設ける必要が無く、設置費用を低減することがで
きる。As described above, the insulated track circuit according to the present invention detects the trains of different frequencies of the adjacent track circuits 1T, 2T, 3T connected through the impedance bonds ZB 1 , ZB 2 , ZB 3. Rail insulation device A 1 ~
Since the destruction of A 3 , B 1 to B 3 is detected, it is not necessary to separately provide the oscillator OSC or the like, and the installation cost can be reduced.
【００２４】また、隣接する軌道回路１Ｔ，２Ｔ，３Ｔ
は異なった周波数の列車検知信号を利用し列車検知を行
っているので、軌条絶縁装置Ａ1〜Ａ3，Ｂ1〜Ｂ3が破壊
されて絶縁が短絡し隣接する軌道回路１Ｔ，２Ｔ，３Ｔ
の列車検知信号が重畳されても周波数により信号を分離
でき、列車の有無を検知することができる。Further, adjacent track circuits 1T, 2T, 3T
Trains are detected by using train detection signals of different frequencies, the rail insulation devices A 1 to A 3 and B 1 to B 3 are destroyed, the insulation is short-circuited, and adjacent track circuits 1T, 2T, 3T.
Even if the train detection signal is superposed, the signals can be separated according to the frequency, and the presence or absence of a train can be detected.
【００２５】[0025]
【発明の効果】この発明は以上説明したように、送信器
ＴＸ1は送信側のインピ−ダンスボンドＺＢ12を介して
周波数ｆ1の列車検知信号を軌道回路１Ｔに出力し、バ
ンドパスフィルタＢＰＦ12は軌道回路１Ｔの受信側のイ
ンピーダンスボンドＺＢ21を介して軌道回路１Ｔから送
られる信号のうち周波数ｆ1の信号を透過し受信器ＲＸ1
に送り、受信器ＲＸ1はバンドパスフィルタＢＰＦ12に
接続され、周波数ｆ1の信号の受信の有無により列車の
検知を行なうので、軌条絶縁装置Ａ2，Ｂ2が破壊されて
いるか否かに係わらず、受信器ＲＸ1は送信部ＴＸ1が送
信する列車検知信号の有無を検出することができる。As described above, according to the present invention, the transmitter TX 1 outputs the train detection signal of the frequency f 1 to the track circuit 1T via the impedance bond ZB 12 on the transmission side, and the bandpass filter BPF. Reference numeral 12 shows a signal of the frequency f 1 among the signals sent from the track circuit 1T through the impedance bond ZB 21 on the receiving side of the track circuit 1T, and the receiver RX 1
The receiver RX 1 is connected to the bandpass filter BPF 12 and detects the train by the presence or absence of the reception of the signal of the frequency f 1 , so whether the rail insulation devices A 2 and B 2 are destroyed or not. Regardless, the receiver RX 1 can detect the presence or absence of the train detection signal transmitted by the transmitter TX 1 .
【００２６】さらに、軌条絶縁破壊検出器ＩＤＴ1は軌
道回路２Ｔに流れる周波数ｆ2の信号を通過させるバン
ドパスフィルタＢＰＦ11を介して受信側のインピ−ダン
スボンドＺＢ21に接続され、受信側のインピ−ダンスボ
ンドＺＢ21に周波数ｆ2の信号が重畳されたときに軌道
回路１Ｔと軌道回路２Ｔ間の軌条絶縁装置Ａ2，Ｂ2が絶
縁破壊したと判断するので、軌道回路１Ｔと軌道回路２
Ｔ間の軌条絶縁装置Ａ2，Ｂ2の絶縁破壊の有無を検知す
ることができる。Further, the rail dielectric breakdown detector IDT 1 is connected to an impedance bond ZB 21 on the receiving side through a bandpass filter BPF 11 which allows a signal of frequency f 2 flowing in the track circuit 2T to pass through, and is connected to the impedance bond ZB 21 on the receiving side. When a signal of frequency f 2 is superimposed on the impedance bond ZB 21 , it is determined that the rail insulation devices A 2 and B 2 between the track circuit 1T and the track circuit 2T have a dielectric breakdown, so the track circuit 1T and the track circuit Two
It is possible to detect the presence or absence of dielectric breakdown of the rail insulation devices A 2 and B 2 between T.
【００２７】また、軌条絶縁破壊検出器ＩＤＴ2は軌道
回路３Ｔに流れる周波数ｆ1の信号を通過させるバンド
パスフィルタＢＰＦ21を介して受信側のインピ−ダンス
ボンドＺＢ31に接続され、受信側のインピ−ダンスボン
ドＺＢ31に周波数ｆ1の信号が重畳されたときに軌道回
路２Ｔと隣接する軌道回路３Ｔ間の軌条絶縁装置Ａ3，
Ｂ3が絶縁破壊したと判断するので、軌道回路２Ｔと隣
接する軌道回路３Ｔと間の軌条絶縁装置Ａ3，Ｂ3の絶縁
破壊の有無を検知することができる。Further, the rail insulation breakdown detector IDT 2 is connected to an impedance bond ZB 31 on the receiving side through a bandpass filter BPF 21 which allows a signal of the frequency f 1 flowing in the track circuit 3T to pass through, and is connected to the receiving side. When a signal of frequency f 1 is superimposed on the impedance bond ZB 31 , the track insulation device A 3 , between the track circuit 2T and the adjacent track circuit 3T,
Since B 3 is determined to have dielectric breakdown, it is possible to detect the presence or absence of a rail isolator A 3, B 3 of dielectric breakdown between the track circuit 3T adjacent to the track circuit 2T.
【００２８】また、軌条絶縁破壊検知器ＩＤＴ1，ＩＤ
Ｔ2は軌条絶縁装置Ａ1〜Ａ3，Ｂ1〜Ｂ3が破壊され互い
に隣接する軌道回路１Ｔ，２Ｔ，３Ｔが短絡された場合
にのみ隣接する軌道回路１Ｔ，２Ｔ，３Ｔ上の送信器Ｔ
Ｘ1，ＴＸ2，ＴＸ3が送信する電流を検出し動作するの
で、通常は動作せず寿命が長い。Further, the rail dielectric breakdown detectors IDT 1 , ID
T 2 is a transmitter on adjacent track circuits 1T, 2T, 3T only when track insulation devices A 1 -A 3 , B 1 -B 3 are destroyed and adjacent track circuits 1T, 2T, 3T are short-circuited. T
Since it operates by detecting the currents transmitted by X 1 , TX 2 and TX 3 , it does not normally operate and has a long life.
【００２９】また、隣接する軌道回路１Ｔ，２Ｔ，３Ｔ
の異なった周波数の列車検知信号を利用し軌条絶縁装置
Ａ1〜Ａ3，Ｂ1〜Ｂ3の破壊を検知するので、送信器等を
別途設ける必要が無く、設置費用を低減することができ
る。Further, adjacent track circuits 1T, 2T, 3T
Since the breakage of the rail insulation devices A 1 to A 3 and B 1 to B 3 is detected by using the train detection signals of different frequencies, it is not necessary to separately install a transmitter and the like, and the installation cost can be reduced. .
【図１】この発明の一実施例を示す構成図である。FIG. 1 is a configuration diagram showing one embodiment of the present invention.
【図２】従来の有絶縁軌道回路の構成例を示す構成図で
ある。FIG. 2 is a configuration diagram showing a configuration example of a conventional insulated track circuit.
【図３】他の従来の軌条絶縁破壊検知器の例を示す構成
図である。FIG. 3 is a configuration diagram showing an example of another conventional rail insulation breakdown detector.
１Ｔ 軌道回路 ２Ｔ 軌道回路 ３Ｔ 軌道回路 ＢＰＦ バンドパスフィルタ ＩＤＴ 軌条絶縁破壊検知器 ＯＳＣ 発振器 ＲＸ 受信器 ＴＸ 送信器 ＺＢ インピーダンスボンド 1T track circuit 2T track circuit 3T track circuit BPF band pass filter IDT track breakdown detector OSC oscillator RX receiver TX transmitter ZB impedance bond
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小峰 利行 東京都千代田区丸の内一丁目６番５号 東 日本旅客鉄道株式会社内 (72)発明者 中島 康成 東京都千代田区丸の内一丁目６番５号 東 日本旅客鉄道株式会社内 (72)発明者 日朝 賢三 神奈川県横浜市鶴見区平安町２丁目29番地 の１ 株式会社京三製作所内 (72)発明者 永山 征男 神奈川県横浜市鶴見区平安町２丁目29番地 の１ 株式会社京三製作所内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Toshiyuki Komine 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Within East Japan Railway Company (72) Inari Yasunari Nakajima 1-6-5, Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Kenzo Nissa 1-29-2 Heian-cho, Tsurumi-ku, Yokohama, Kanagawa Prefecture Kyosan Manufacturing Co., Ltd. (72) Inventor Masao Nagayama 2 Heian-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Kyosan Manufacturing Co., Ltd. 1 at 29-chome
Claims (1)
装置（Ａ1〜Ａ3），（Ｂ1〜Ｂ3）を境にして設けられ、
インピ−ダンスボンド（ＺＢ1），（ＺＢ2），（Ｚ
Ｂ3）を介して接続された軌道回路（１Ｔ），（２
Ｔ），（３Ｔ）を有する有絶縁軌道回路であって、 各軌道回路（１Ｔ），（２Ｔ），（３Ｔ）はそれぞれ２
本のレ−ル（１），（２）と送信器（ＴＸi）と受信器
（ＲＸi）と送信側のインピ−ダンスボンド（ＺＢi2）
と受信側のインピ−ダンスボンド（ＺＢi1）と軌条絶縁
破壊検出器（ＩＤＴi）とを有し、 軌道回路（１Ｔ）の送信器（ＴＸ1）は周波数ｆ1の列車
検知信号を軌道回路（１Ｔ）に出力するものであり、送
信側のインピ−ダンスボンド（ＺＢ12）に接続され、受
信器（ＲＸ1）は周波数ｆ1の信号の受信の有無により列
車の検知を行なうものであり、周波数ｆ1の信号を通過
させるバンドパスフィルタ（ＢＰＦ12）を介して受信側
のインピ−ダンスボンド（ＺＢ21）に接続され、軌条絶
縁破壊検出器（ＩＤＴ1）は軌道回路（１Ｔ）と軌道回
路（２Ｔ）間の軌条絶縁装置（Ａ2），（Ｂ2）の絶縁破
壊の有無を検知するものであり、軌道回路（２Ｔ）に流
れる周波数ｆ2の信号を通過させるバンドパスフィルタ
（ＢＰＦ11）を介して受信側のインピ−ダンスボンド
（ＺＢ21）に接続され、受信側のインピ−ダンスボンド
（ＺＢ21）に周波数ｆ2の信号が重畳されたときに軌道
回路（１Ｔ）と軌道回路（２Ｔ）間の軌条絶縁装置（Ａ
2），（Ｂ2）が絶縁破壊したと判断し、 軌道回路（２Ｔ）の送信器（ＴＸ2）は軌道回路（１
Ｔ）に送信される列車検知信号の周波数ｆ1と異なる周
波数ｆ2の列車検知信号を軌道回路（２Ｔ）に出力する
ものであり、送信側のインピ−ダンスボンド（ＺＢ22）
に接続され、受信器（ＲＸ2）は周波数ｆ2の信号の受信
の有無により列車の検知を行なうものであり、周波数ｆ
2の信号を通過させるバンドパスフィルタ（ＢＰＦ22）
を介して受信側のインピ−ダンスボンド（ＺＢ31）に接
続され、軌条絶縁破壊検出器（ＩＤＴ2）は軌道回路
（２Ｔ）と隣接する軌道回路（３Ｔ）と間の軌条絶縁装
置（Ａ3），（Ｂ3）の絶縁破壊の有無を検知するもので
あり、軌道回路（３Ｔ）に流れる周波数ｆ1の信号を通
過させるバンドパスフィルタ（ＢＰＦ21）を介して受信
側のインピ−ダンスボンド（ＺＢ31）に接続され、受信
側のインピ−ダンスボンド（ＺＢ31）に周波数ｆ1の信
号が重畳されたときに軌道回路（２Ｔ）と隣接する軌道
回路（３Ｔ）間の軌条絶縁装置（Ａ3），（Ｂ3）が絶縁
破壊したと判断することを特徴とする有絶縁軌道回路。1. A two-les - Le (1), (2) rails insulation apparatus (A 1 to A 3), provided in the boundary (B 1 .about.B 3),
Impedance Bond (ZB 1 ), (ZB 2 ), (Z
Track circuits (1T), (2) connected via B 3 ).
Insulated track circuits having T) and (3T), where each track circuit (1T), (2T), (3T) is 2
Rails (1) and (2) of the book, transmitter (TX i ), receiver (RX i ) and impedance bond on the transmission side (ZB i2 ).
And an impedance bond (ZB i1 ) on the receiving side and a rail insulation breakdown detector (IDT i ). The transmitter (TX 1 ) of the track circuit (1T) transmits the train detection signal of frequency f 1 to the track circuit. It outputs to (1T), is connected to the impedance bond (ZB 12 ) on the transmission side, and the receiver (RX 1 ) detects the train by whether or not the signal of the frequency f 1 is received. , Is connected to an impedance bond (ZB 21 ) on the receiving side via a bandpass filter (BPF 12 ) that passes a signal of frequency f 1 , and the rail insulation breakdown detector (IDT 1 ) is connected to a track circuit (1T). A band-pass filter (a band-pass filter for detecting the presence or absence of dielectric breakdown of the rail insulation devices (A 2 ) and (B 2 ) between the track circuits (2T) and passing a signal of frequency f 2 flowing through the track circuits (2T) ( receiving side through the BPF 11) Inpi - is connected to the dance bond (ZB 21), the receiving side Inpi - rail insulation between track circuit (2T) and track circuit (1T) when a signal of frequency f 2 is superimposed on the dance bond (ZB 21) Device (A
2 ), (B 2 ) is judged to have a dielectric breakdown, and the transmitter (TX 2 ) of the track circuit (2T) is
A train detection signal having a frequency f 2 different from the frequency f 1 of the train detection signal transmitted to T) is output to the track circuit (2T), and an impedance bond (ZB 22 ) on the transmission side.
And a receiver (RX 2 ) for detecting a train depending on whether or not a signal of frequency f 2 is received.
Bandpass filter (BPF 22 ) that passes the 2 signal
Is connected to the impedance bond (ZB 31 ) on the receiving side via a track insulation device (IDT 2 ) and the track insulation device (A 3 ) between the track circuit (2T) and the adjacent track circuit (3T). ), (B 3 ) for detecting the presence or absence of dielectric breakdown, and an impedance bond on the receiving side via a bandpass filter (BPF 21 ) that passes a signal of frequency f 1 flowing in the track circuit (3T). (ZB 31 ), and when a signal of frequency f 1 is superimposed on the impedance bond (ZB 31 ) on the receiving side, the track insulation device between the track circuit (2T) and the adjacent track circuit (3T) ( a 3), (B 3) is perforated insulating track circuit, characterized in that it is determined that the dielectric breakdown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18064495A JPH092270A (en) | 1995-06-26 | 1995-06-26 | Insulated track circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18064495A JPH092270A (en) | 1995-06-26 | 1995-06-26 | Insulated track circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH092270A true JPH092270A (en) | 1997-01-07 |
Family
ID=16086802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18064495A Pending JPH092270A (en) | 1995-06-26 | 1995-06-26 | Insulated track circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH092270A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100615682B1 (en) * | 2005-12-01 | 2006-08-25 | 미래정보산업(주) | An apparatus for monitoring spark of dead section of electronic railway |
| KR100754323B1 (en) * | 2005-11-23 | 2007-09-03 | 문동석 | Impedance bond for frequency replacement |
| JP2009113671A (en) * | 2007-11-07 | 2009-05-28 | Central Japan Railway Co | Insulation state determination method and insulation state determination device |
| JP2015189457A (en) * | 2014-03-31 | 2015-11-02 | 東日本旅客鉄道株式会社 | Method and device for detecting insulation deterioration of track circuit |
| JP2021075193A (en) * | 2019-11-12 | 2021-05-20 | 大同信号株式会社 | Track circuit transmitter-receiver and track circuit receiver |
-
1995
- 1995-06-26 JP JP18064495A patent/JPH092270A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100754323B1 (en) * | 2005-11-23 | 2007-09-03 | 문동석 | Impedance bond for frequency replacement |
| KR100615682B1 (en) * | 2005-12-01 | 2006-08-25 | 미래정보산업(주) | An apparatus for monitoring spark of dead section of electronic railway |
| JP2009113671A (en) * | 2007-11-07 | 2009-05-28 | Central Japan Railway Co | Insulation state determination method and insulation state determination device |
| JP2015189457A (en) * | 2014-03-31 | 2015-11-02 | 東日本旅客鉄道株式会社 | Method and device for detecting insulation deterioration of track circuit |
| JP2021075193A (en) * | 2019-11-12 | 2021-05-20 | 大同信号株式会社 | Track circuit transmitter-receiver and track circuit receiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Effective date: 20040309 Free format text: JAPANESE INTERMEDIATE CODE: A02 |